Trolley.



C. M. FEES? TROLLEY.

APPLICATION man JUNE 14. L9H! Patented Apr. 1, 1919.

CHARLES M. FEIST, OFSIOUX CITY, IOWA.

TROLLEY.

Specification of Letters Patent.

Patented Apr. 1, 1919.

Application filed June 14, 1918. Serial N0. 240,061.

To all whom it may concern Be it known that 1, CHARLES M. FErs'r, a citizen of the United States, residing at Sioux City, in the county of Woodbury and State of Iowa, have invented new and useful Improvements in Trolleys, of which the following is a specification.

This invention relates to wheels and bearings of that type having self-lubricating characteristics, and particularly to trolley wheels and supports and bearings thereof, and one object in view is the provision of a trolley wheel having a removable support and bearing with self-feeding lubricating means of a highly efficient nature and where in the bearing surfaces will fit accurately and also embody efiicient electrical contact between the wheel and its supporting axle, the lubricating means operating in a manner to avoid the least interference with the electrical contact between the wheel and its axle. A further object of the invention is to provide a good mechanical and electrical joint between the harp and pole and whereby the harp carrying the bearing and wheel may be easily removed from the pole without taking the pole out of the base with a resultant saving in labor and time in changing harps on top of a car. 4

With these and other objects and advantages in View, the invention consists in the construction and arrangement of the several parts hereinafter more fully described and claimed.

In the drawing Figure 1 represents a side elevation show- :ing a trolley wheel and harp constructed in accordance with the present invention.

Fig. 2 represents a transverse section through the trolley wheel and harp on the 1 line 22 Fig. 1.

9 of one of the lubricating plugs.

Fig. 6 is a View similar to Fig. 4: showing a less number of lubricating plugs.

Certain features of the present invention 1. are. applicable to wheels and other revoluble parts generally, and though the present improvements possess particular advantages as applied to trolley wheels and are shown in the drawings and will be hereinafter described in detail as applied to this class of wheels, it will be understood that the invention is not necessarily restricted to this class material features of improvement relatively to the structures disclosed by my prior Patents No. 796,829 of August 8, 1905, and No. 1,172,965 of February 22, 1916.

The numeral 5 designates a socket at the upper end of the usual form of trolley pole, said socket having a tapered coupling rod or post 6 secured therein and projecting above the socket terminal any suitable distance to removably receive the harp and trolley wheel. The harp in the present instance comprises a pair of fork jaws or sections 7 and 8 preferably of duplicate form, as shown, and provide halves of the harp. The half fork jaws or sections of the harp each has a shank 9, both shanks being of similar form and dimensions and each formed with an inner tapered half-groove 10. The grooves 10 of the two shanks, when assembled, provide atapered socket to re ceive the tapered rod or post 6, the latter having a reduced screw-threaded end 11 which extends upwardly above the socket of the shanks to receive a nut 12 and suitable locking washer 13 which engages the inner portions of the bases of harp fork jaws or sections 7 and 8 over the socket formed by the grooves 10 to reinovably hold the trolley wheel and harp on the rod or post 6 and trolley pole, and whereby release or removal of the nut 12 and washer 1-3 will permit driving the harp and trolley wheel off the said rod or post without releasing or removing the trolley pole from its base with material advantage in harp and trolley wheel replacements and substitutions. The rod or post 6 has a pin 11 projecting outwardly therefrom to engage a slot 15 in the lower end of one of the harp sections to provide for alinement of the harp and trolley wheel relatively to said rod or post and the trolley pole. Between the upper end of the socket 5 and the lower ends of the sections 7 and 8 a space 16 is left for mounting the rope swivel 17. The outer sides of the fork jaws or sections 7 and 8 are also provided with corresponding ribs 18 and 18 which serve to defl ct the trolley wire past the securing bolt heads and nuts for the harp jaws or sections should the trolley wheel for any reason leave the trolley wire and when endeavoring to place said wheel in engagement with the wire, 5 thereby avoiding damage to the trolley wire and overhead electrical construction. The upper portion of the harp is recessed to receive the grooved trolley wheel 19 which has an enlarged central. eye or bore with a convex surface 20 to rotatably fit a spoollike axle or hearing with a concave bearing surface 21 and centrally divided to form two sections 22 and 23 of duplicate contour and mounted between the harp fork aws or sections 7 and 8 and held immovable by bolts 2i extending transversely through said jaws or sections and the bearing sections. The concave bearing surface 21 extends regularly and fully to the outer ends of the wheel axle, each section 22 and 23 having a facing plate 25 on its outer end and separated by a partition plate 26 interposed between the inner ends of the sections and preferably carried by one of the latter. 25 The trolley wheel 19 is free to rotate on the axle or hearing, and the engaging convex and concave surfaces of the parts will maintain the said trolley wheel in cent "a position on the axle or hearing. To provide for 30 easy running movement and reduce frictional wear of the trolley wheel on its axle or hearing, the said axle or bearing is constructed as a self-lubricating means for the trolley wheel, and in the present instance each of the sections 22 and 23 carries one or more oppositely exposed lubricating devices, Figs. 1, 2, 3 and 4 illustrating an axle or bearing having four lubricating devices or media, two in each section, and Fig. 6 showing an axle or bearing with one lubricating device in each section. In accord- -ance with this showing it is intended to be understood that the axle or hearing sections may be provided with one or more lubricating devices. In the forms. of the axle or bearing, shown more clearly by Fig. 4c, each section 22 and 23 is formed with two bores or sockets 27 extending from an intermediate portion of each section in reverse directions outwardly through the periphery thereof, the sockets of each section being individually disposed on opposite sides of the center of the section. The pairs of sockets of the two sections also have reverse re- 5 lation to each other, or, considering all, the

sockets of the two sections, they individually alternate as to their reverse out ard directions. In the form of axle shown by Fig. 6 the socket of each section extends outwardly in reverse direction to the socket of the other section. A spring 28 is disposed against the inner end wall of each socket 27, and this spring is compressed by a plug 29 of plumbago or other lubricating 35 material or composition of materials which is inserted in the socket, the spring gradually pressing the plug outwardly as the latter wears away, and thereby the plugs will always be held in working positions until entirely worn away when they may be readily replaced by similar plugs. The outer ends 30 of the plugs are cut ofi at an angle to adapt them to the peripheral surface of the axle section in which they are mounted. The convex surface 20 of the eye or bore of the trolley wheel 19 will be thoroughly lubricated by plugs 29 which have their outer ends in exposed position for engagement by the said convex surface.

The extended engaging convex and concave surfaces respectively of the axle or hearing and eye or bore of the trolley wheel provide for a maximum surface contact between the trolley wheel and its axle for conducting current from said wheel to the axle. Also, the outer enlarged ends of the sections 22 and 23 of the axle or hearing will give good electrical contact with the fork jaws or sections 7 and 8 of the harp.

The improved structure as a whole contemplates structural advantages which ren der the trolley wheel organization convenient and effective.

I claim as my invention:

1. A hearing for wheels comprising an axle embodying sections of like form and dimensions, each section having a concave peripheral surface extending from the outer to the inner end thereof and the united sections providing a peripheral concave surface extending fully from the one outer end to the opposite outer end of the axle, a wheel having a central eye with a convex surface continuous from one end to the opposite end, and lubricating plugs held by the axle sections.

2. A bearing for wheels comprising an axle with a concave periphery centrally and divided to form sections of like contour and dimensions, a wheel having a central bore with a continuous convex surface, and reversely extending lubricating plugs mounted in the axle sections and having their outer ends exposed through the periphery of the axle to and engaging the convex surface of the wheel bore between the opposite ends of the wheel.

3. A bearing for wheels comprising an axle with a concave periphery and centrally divided to form sections of like contour and dimensions, a wheel having a central bore with a continuous convex surface conforming to and rotatably fitting the concave periphery of the axle, and one or more lubricating plugs arranged alternately in reverse positions and movably projecting through the periphery of the axle and held in contact with the convex surface of the wheel bore between the opposite ends of the wheel.

4:. A hearing for wheels comprising an axle with a concave periphery extending fully from one end to the opposite end thereof, a wheel having a. central bore therethrough with a continuous convex surface complemental to and rotatably fitting the concave periphery of the axle, and lubricating plugs extending outwardly from the axle in reverse directions on opposite sides of the center of said axle and engaging the convex surface of the wheel bore.

5. The combination with a mounting having side members, of a wheel having a central bore with a continuous convex surface extending from end to end thereof, an axle confined between and fixed to said members and composed of equal sections jointly having a concave periphery extending fully to the outer ends of the sections, and lubricating plugs reversely disposed in the sections on opposite sides of the center of the axle and having an automatic feeding contact with the convex surface of the bore of the Wheel.

6. Lubricating means for the outer and inner peripheral bearing surfaces between relatively fixed and revoluble parts, com prising lubricating plugs located at opposite sides of the center of the relatively fixed part and projecting outwardly through the bearing surfaces of the latter part in alternate reverse arrangement to lubricate the bearing surface of the revoluble part.

7 The combination with a wheel having an interior convex bearing surface extending fully from end to end thereof, of an axle comprising two sections having complemental concave bearing surfaces jointly forming a continuous concave peripheral bearing surface engaged by the convex bearing surface of the wheel, said axle sections having sockets therein reversely operating outwardly through the concave bearing surface of the axle, and lubricating media contained in said sockets and having their outer ends cooperating with the bearing surface of the wheel.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses'.

CHARLES M. FEIST.

Witnesses:

DOROTHY DE BEER, H. B. GREGORY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. O. 

